[OpenAFS-port-darwin] Darwin 1.4/Mac OS 10.1 patch

[Shantonu Sen]

FYI, for reasons that boggle the mind, the Darwin kernel version
will soon be changing from 1.4 to 5.1. This change should be reflected
in Darwin opensource CVS.

This is cosmetic, but raises the interesting question of whether
the sysname should be changed, or...

Shantonu

> Attached is my "official" patch for 1.4/10.1 against the OpenAFS 1.2.2
> release. I recommend that anyone using afs with 10.1 use this patch and
> not one from any other source. In particular, no one else is likely to
> have properly modified osi_VM_TryReclaim to work properly under the
> Darwin 1.4 kernel.
>